Lemma 85.34.5. Let $S$ be a scheme. Let $X$ be an algebraic space over $S$. Let $U$ be a simplicial algebraic space over $S$. Let $a : U \to X$ be an augmentation. If $a : U \to X$ is an fppf hypercovering of $X$, then
\[ R\Gamma (X_{\acute{e}tale}, K) = R\Gamma (U_{\acute{e}tale}, a^*K) \]
for $K \in D_\mathit{QCoh}(\mathcal{O}_ X)$. Here $a : \mathop{\mathit{Sh}}\nolimits (U_{\acute{e}tale}) \to \mathop{\mathit{Sh}}\nolimits (X_{\acute{e}tale})$ is as in Section 85.32.
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